Combined water still and heater.



n 0 9 1 7 l T E S D E T N E T A P COMBINED WATER STILL AND HEATER.

APPLIOATION FILED JAN. 28. 1907 THE NORRIS PETERS co., WASHINGTON, n. c,

FRANCIS EDDY MAXSON, 0F HARMONY, MINNESOTA.

COMBINED WATER STILL AND HEATER.

Specification of Letters Patent.

Patented Sept. 17, 1907.

Application filed January 28, 1907. Serial No. 354,435.

To all whom it may concern:

Be it known that I, FRANoIs EDDY MAXSON, a citizen of the United States,residing at Harmony, in the county of Fillmore and State of Minnesota,have inyented certain new and useful Improvements in a Combined WaterStill and Heater, of which the following is a specification.

This invention is a combined water still and heater, adaptedparticularly for laboratory and domestic use, but not in any way limitedto such use.

The object of the invention is to produce a simple and cheap apparatusof the kind stated, the operation of which can be quickly changed fromthat of a heater to that of a still, and which has various otheradvantages of operation and construction as will more fully appear fromthe following description.

The invention is illustrated in the accompanying drawings, in whichFigure 1 is a vertical section of the apparatus. Fig. 2 is a horizontalsection on the line 22 of Fig. l.

Referring specifically to the drawings, 1 indicates an outer casing orjacket, which may be made cylindrical or otherwisein form. Locatedwithin this, and spaced from the walls thereof, is the condenser casing2. A steam pipe 3 extends through the jacket and opens into the upperpart of the condenser, and this pipe has a valve 4 controlling thesteam.

6 indicates the cold water supply pipe which opens into the lower partof the jacket and has. a valve 7 to regulate the flow of water. Thispipe has a branch 6 which connects with the steam pipe 3 and is providedwith a valve 5 which is opened when it is desired to flush thecondenser.

The outlet pipe from the bottom of the condenser, for the distilledwater, is indicated at 10, and is controlled by a valve 9 therein. I

17 is a drain pipe from the j acket and it is connected to the drainpipe 10 through a check valve 8, which valve opens toward the pipe 17.The jacket has an overflow pipe 15 which extends to near the top thereofand leads to the waste pipe 11 which is also connected to the pipe 17through a valve 12.

13 is a spigot connected to the jacket for drawing off hot Water, and 14is a glass watergage for measuring the water supply. i

The condenser is supported within the jacket by means of the pipes 10and 3, and may be otherwise braced or supported if desired or necessary.The whole apparatus is conveniently mounted upon a stand 16. p

In operation as a still the valve 4 is opened to let steam into thecondenser and the valve7 is opened to let cold water into the jacket,and the valve 9 is densed in the condenser and passes out through thepipe 10 to a vessel placed to receive it.

In operation as a hot water heater, the valve 9 is closed, and coldwater enters the jacket 1 through the valve 7. The steam then enteringthe condenser is forced, together with any condensed water, through thecheck valve 8, with very little pressure, and through pipe 17 into thewater jacket, thereby heating the water in said jacket. Any overflowpasses out the pipe 15, and hot water needed for use can be drawn offfrom the spigot 13. p

To flush and clean the condenser the valve 5 is opened and also thevalve 9. This allows a free flow of cold water through the condenser tocleanthe same. To drain or flush the jacket the valve 12 is opened whichallows the escape of all the water in the jacket, to the waste pipe 11.

It will be seen that the apparatus is very simple in construction andmay readily be made without special parts or casting. It can easily bechanged from a heater to a still or vice" versa.

I claim:

1. A combined water still and heater having, in combination, a jacketprovided with a cold water supply pipe, a condenser within the jacket,having a steam inlet pipe and an outlet pipe for the distilled water,and a valved pipe connecting the condenser to the jacket and arranged toconduct hot water from the former into the latter when desired.

2. A combined Water still and heater having, in combination, a jacketprovided with a cold water supply pipe, a condenser within the jacket,having an inlet pipe for steam and a valved outlet pipe for thedistilled water, and a pipe connecting said outlet pipe and the jacketand having a check valve arranged to open from said outlet pipe to thejacket when the valve in said outlet pipe is closed.

3. In a combined water still and heater, in combination, a jacket havinga cold water inlet and an overflow outlet, a condenser inclosed in thejacket and having a steam inlet and a valved distilled water outlet, andadmin pipe extending from the bottom of the jacket and having a valvedconnection to the over-flow outlet, and also having a connection to thedistilled Water outlet provided with a check valve, substantially asdescribed.

4. The combination with a condenser having a steam inlet pipe and anoutlet, of a jacket inclosing the condenser and having a water inletpipe, and a valved connecting pipe between the water inlet pipe and thesteam inlet pipe, to flush the condenser when desired.

In testimony whereof I aflfix my signature, in presence of twowitnesses.

- FRANCIS EDDY MAXSON.

Witnesses:

T. A. SORENSON, SAMUEL B. JoHNNs.

